- Source: Sida acuta
Sida acuta, the common wireweed, is a species of flowering plant in the mallow family, Malvaceae. It is believed to have originated in Central America, but today has a pantropical distribution and is considered a weed in some areas.
In northern Australia, Sida acuta is considered an invasive species, and the beetle Calligrapha pantherina has been introduced as a biological control agent in an attempt to control the plant.
Description
= Plant
=Undershrub, with mucilaginous juice, aerial, erect, cylindrical, branched, solid, green.
= Leaves
=Alternate, simple, lanceolate to linear, rarely ovate to oblong, obtuse at the base, acute at the apex, coarsely and remotely serrate; petiole much shorter than the blade; stipulate, stipules free-lateral, unequally paired at the node, reticulate venation.
= Inflorescence
=Cymose
= Flower
=Small, axillary, 2–3 in a cluster; pedicels jointed at the middle, epicalyx absent, complete, bisexual, regular, actinomorphic, hypogynus, pentamerous, yellow.
= Calyx
=Sepals: five, gamosepalous, campanulate, slightly accrescent, persistent, valvate.
= Corolla
=Petals: five, polypetalous but slightly connate below and jointed with the staminal column, twisted.
= Androecium
=Stamens many, monadelphous, arranged on the staminal column; staminal column is shorter than the petals, divided above into numerous filaments, anthers monothecous, reniform, basifixed, filament short, extrorse. Pollen are spherical with spikes, size is approximately 90 microns.
= Gynoecium
=Carples: five, syncarpous, ovary superior, penta or multilocular with axile placentation, one ovule in each locule; style 1, passing through the staminal tube; stigma globular, correspond to the number of carpels.
= Fruit
=A schizocarpic mericarp, seed 1 in each mericarp.
= Classification and identification (Bentham and Hooker's system)
=Class: Dicotyledonae
I) Reticulate venation.
II) Flower pentamerous.
Sub-class: Polypetalae
I) Petals free.
Series: Thalamiflorae
I) Flower hypogynus; ovary superior.
Order: Malvales
I) Stamens indefinite, monadelphous.
II) Ovary 5 carpellary, placentation axile.
Family: Malvaceae
I) Plant: mucilaginous.
II) Leaves: simple with free lateral stipule.
III) Flower: bisexual, petals: five, twisted; monadelphous stamen, anther one-celled, reniform.
Genus: Sida
I) Staminal column without teeth at apex.
II) Flowers without epicalyx.
III) Ovule 1 in each locule; seed 1 in each mericarp.
Species: S.acuta
I) Leaf base obtuse, apex acute.
= Floral formula of Sida acuta
=Br,+,K⁵,C⁵^,A_,G(⁵)
Names
= Vernacular name
=Sanskrit: bala
Bengali: kureta/berela (in Tripura)
Hindi: kareta/kharenti
Odia (Oriya): siobala
Gujrati: bala/jangli menthi
Marathi: chikana
Malayalam: malatanni
Tamil: malaidangi,Arivaal Mooku Pachilai
Telugu: nelabenda
Kannada: vishakaddi
Sinhala: gasbevila
Burmese: katsayna
Yoruba: Ìsékètu
mutsvairo
Shona language
References
Sida acuta in West African plants – A Photo Guide.
Kata Kunci Pencarian:
- Galunggang
- Sida
- Sida acuta
- Calligrapha pantherina
- Sida (plant)
- List of plants used for smoking
- List of Sida species
- Pachliopta hector
- Kanyakumari district
- Flora of the Cocos (Keeling) Islands
- List of invasive plant species in the Northern Territory
- Myllocerus viridanus
